<template>
    <div class="app-container">
  
      <el-row :gutter="10" class="mb8">
        <el-col :span="1.5">
          <el-button
              type="primary"
              plain
              icon="Plus"
              @click="handleAdd"
          >新增</el-button>
        </el-col>
        <el-col :span="1.5">
          <el-button
              type="danger"
              plain
              icon="Delete"
              @click="handleDelete"
          >删除</el-button>
        </el-col>
        <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
      </el-row>
  
      <el-table v-loading="loading" :data="specList" @selection-change="handleSelectionChange">
        <el-table-column type="selection" width="55" align="center" />
        <el-table-column label="分类名称" prop="categoryName" width="120"/>
        <el-table-column label="规格名称" align="left" prop="specName" width="120"/>
        <el-table-column label="规格值" #default="scope" >
          <div
              v-for="(item1, index1) in scope.row.specValueList"
              :key="index1"
              style="padding: 5px; margin: 0;width: 100%;"
          >
            {{ item1.key }}：
            <span
                v-for="(item2, index2) in item1.valueList"
                :key="index2"
                class="div-atrr"
            >
            {{ item2 }}
          </span>
          </div>
        </el-table-column>
        <el-table-column prop="createTime" label="创建时间" width="160"/>
        <el-table-column label="操作" align="center" class-name="small-padding fixed-width" width="160">
          <template #default="scope">
            <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)">删除</el-button>
          </template>
        </el-table-column>
      </el-table>
  
      <!-- 分页条组件 -->
      <pagination
          v-show="total>0"
          :total="total"
          v-model:page="queryParams.pageNum"
          v-model:limit="queryParams.pageSize"
          @pagination="getList"
      />
  
      <!-- 添加商品规格对话框 -->
      <el-dialog :title="title" v-model="open" width="600px" append-to-body>
        <el-form ref="specRef" :model="form" :rules="rules" label-width="80px">
          <el-form-item label="分类" prop="categoryIdList">
            <el-cascader
                :props="categoryProps"
                v-model="form.categoryIdList"
            />
          </el-form-item>
          <el-form-item label="规格名称" prop="specName">
            <el-input v-model="form.specName" placeholder="请输入规格名称" />
          </el-form-item>
          <el-form-item>
            <div
                v-for="(item1, index1) in specValueList"
                :key="index1"
                style="padding: 10px; margin: 0;"
            >
              {{ item1.key }}：
              <span
                  v-for="(item2, index2) in item1.valueList"
                  :key="index2"
                  class="div-atrr"
              >
              {{ item2 }}
            </span>
              <el-button size="small" @click="removeAttr(index1)">删除</el-button>
              <br />
            </div>
          </el-form-item>
          <el-form-item label="">
            <el-row v-if="isAdd">
              <el-col :span="10">
                <el-input
                    v-model="specValue.key"
                    placeholder="规格"
                    style="width: 90%;"
                />
              </el-col>
              <el-col :span="10">
                <el-input
                    v-model="specValue.values"
                    placeholder="规格值(如:白色,红色)"
                    style="width: 90%;"
                />
              </el-col>
              <el-col :span="4">
                <el-button size="default" @click="addSpecValue">添加</el-button>
              </el-col>
            </el-row>
            <el-row v-if="!isAdd">
              <el-col :span="4" align="left">
                <el-button size="default" @click="isAdd = true">
                  添加新规格
                </el-button>
              </el-col>
            </el-row>
          </el-form-item>
  
        </el-form>
        <template #footer>
          <div class="dialog-footer">
            <el-button type="primary" @click="submitForm">确 定</el-button>
            <el-button @click="cancel">取 消</el-button>
          </div>
        </template>
      </el-dialog>
  
    </div>
  </template>
  
  <script setup>
  import { listSpec, addSpec, getSpec, updateSpec, delSpec } from "@/api/product/productSpec";
  import { getTreeSelect } from "@/api/product/category";
  
  const { proxy } = getCurrentInstance();
  
  //定义分页列表数据模型
  const specList = ref([]);
  //定义列表总记录数模型
  const total = ref(0);
  //加载数据时显示的动效控制模型
  const loading = ref(true);
  //定义隐藏搜索控制模型
  const showSearch = ref(true);
  //新增与修改弹出层控制模型
  const open = ref(false);
  //新增与修改弹出层标题模型
  const title = ref("");
  //定义批量操作id列表模型
  const ids = ref([]);
  //定义单选控制模型
  const single = ref(true);
  //定义多选控制模型
  const multiple = ref(true);
  
  const data = reactive({
    queryParams: {
      pageNum: 1,
      pageSize: 10,
      categoryId: null,
      specName: null
    },
    form: {},
    rules: {
      categoryIdList: [
        { required: true, message: "分类不能为空", trigger: "blur" }
      ],
      specName: [
        { required: true, message: "规则名称不能为空", trigger: "blur" }
      ]
    }
  });
  
  const { queryParams, form, rules } = toRefs(data);
  
  /** 查询商品规格列表 */
  function getList() {
    loading.value = true;
    listSpec(queryParams.value).then(response => {
      specList.value = response.rows;
  
      specList.value.forEach(function(item) {
        item.specValueList = JSON.parse(item.specValue)
      })
  
      total.value = response.total;
      loading.value = false;
    });
  }
  getList()
  
  //三级分类
  const props = {
    lazy: true,
    value: 'id',
    label: 'name',
    leaf: 'leaf',
    async lazyLoad(node, resolve) {
      const { level } = node
      if (typeof node.value == 'undefined') node.value = 0
      const { code, data, message } = await getTreeSelect(
          node.value
      )
      //hasChildren判断是否有子节点
      data.forEach(function(item) {
        item.leaf = !item.hasChildren
      })
      resolve(data)
    },
  }
  const categoryProps = ref(props)
  
  //处理分类change事件
  const queryCategoryIdList = ref([])
  const handleCategoryChange = () => {
    if (queryCategoryIdList.value.length == 3) {
      queryParams.value.categoryId = queryCategoryIdList.value[2]
    }
  }
  
  /** 搜索按钮操作 */
  function handleQuery() {
    queryParams.value.pageNum = 1;
    getList();
  }
  
  /** 重置按钮操作 */
  function resetQuery() {
    queryCategoryIdList.value = []
    proxy.resetForm("queryRef");
    queryParams.value.categoryId = null
    handleQuery();
  }
  
  //编辑规格属性
  const isAdd = ref(false)
  const specValue = ref({ key: '', values: '' })
  
  const specValueList = ref([])
  function addSpecValue() {

    specValueList.value.push({
      key: specValue.value.key,
      valueList: specValue.value.values.split(','),
    })

    specValue.value = {}

    isAdd.value = false

  }
  function removeAttr(index) {
    specValueList.value.splice(index, 1)
  }
  
  /** 新增按钮操作 */
  function handleAdd() {
    reset();
    open.value = true;
    title.value = "添加商品规格";
  
    specValueList.value = []
  }
  
  // 表单重置
  function reset() {
    form.value = {
      id: null,
      specName: null,
      specValue: null,
      categoryId: null,
      categoryIdList: []
    };
    proxy.resetForm("specRef");
  }
  
  /** 提交按钮 */
  function submitForm() {
    proxy.$refs["specRef"].validate(valid => {
      if (valid) {
        form.value.specValue = JSON.stringify(specValueList.value)
        //系统只需要三级分类id
        form.value.categoryId = form.value.categoryIdList[2]
  
        addSpec(form.value).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    });
  }
  
  // 取消按钮
  function cancel() {
    open.value = false;
    reset();
  }
  
  // 多选框选中数据
  function handleSelectionChange(selection) {
    debugger
    ids.value = selection.map(item => item.id);
    single.value = selection.length != 1;
    multiple.value = !selection.length;
  }
  
  /** 删除按钮操作 */
  function handleDelete(row) {
    const _ids = row.id || ids.value;
    proxy.$modal.confirm('是否确认删除商品规格编号为"' + _ids + '"的数据项？').then(function() {
      return delSpec(_ids);
    }).then(() => {
      getList();
      proxy.$modal.msgSuccess("删除成功");
    }).catch(() => {});
  }
  
  
  </script>
  <style scoped>
  .div-atrr {
    padding: 5px 10px;
    margin: 0 10px;
    background-color: powderblue;
    border-radius: 10px;
  }
  </style>